wall street stocks declined on growing concerns about a stalling global economy. the dow lost 20 points on monday. the nasdaq was down 19 points, dragged down by apple. investors are concerned that the company cannot meet the demand for its new iphone. >>> sales of the new iphone 5 were solid. apple says it sold more than five million since their debut on friday. but that fell short of analysts' expectations. apple shares lost more than 1% on monday, closing at $690.70 per share. shares hit an all-time high of $705 on friday. >>> workers at a plant in china where apple's iphones are assembled went back to work this morning. the factory was closed for one day after 2,000 employees rioted over working conditions. 40 people were injured. apple has come under intense criticism following reports of poor working conditions at the factory. >>> facebook stock took yet another hit. shares fell about 9% monday to close at $20.83 per share. the selloff was triggered by a report which said facebook stock is still too expensive. the report said the stock is worth $15. facebook